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GB872195A - Improvements in and relating to jet propulsion nozzles - Google Patents

Improvements in and relating to jet propulsion nozzles

Info

Publication number
GB872195A
GB872195A GB16177/57A GB1617757A GB872195A GB 872195 A GB872195 A GB 872195A GB 16177/57 A GB16177/57 A GB 16177/57A GB 1617757 A GB1617757 A GB 1617757A GB 872195 A GB872195 A GB 872195A
Authority
GB
United Kingdom
Prior art keywords
nozzle
petals
shroud tube
jet pipe
primary nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB16177/57A
Inventor
Thomas William Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB16177/57A priority Critical patent/GB872195A/en
Priority to US730562A priority patent/US2974481A/en
Priority to DEE15905A priority patent/DE1115527B/en
Publication of GB872195A publication Critical patent/GB872195A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/12—Varying effective area of jet pipe or nozzle by means of pivoted flaps
    • F02K1/1246—Varying effective area of jet pipe or nozzle by means of pivoted flaps of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their downstream ends on a substantially axially movable structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Cleaning In General (AREA)

Abstract

872,195. Jet-propulsion plant. ENGLISH ELECTRIC CO. Ltd. May 19, 1958 [May 21, 1957], No. 16177/57. Class 110 (3). In a jet-propulsion nozzle arrangement in which secondary air is blown out between an inner jet pipe terminating in a convergent primary nozzle and a surrounding shroud tube, a retractable ejector nozzle surrounding the inner jet pipe with coaxial spacing, in the retracted position closely fits the radially inner surface of the shroud tube and terminates upstream of the outlet of the primary nozzle, and in the extended position projects with its trailing edge downstream of the trailing edge of the convergent primary nozzle. The retractable nozzle (Figs. 4, 5) is composed of trapesium shaped hinged plate segments or petals 6, 7 hinged to one another at their short bases. The broad bases of downstream petals 6 are hinged to the trailing edge of a shroud tube 4 and the broad bases of petals 7 are guided with rollers 7<SP>1</SP> in the longitudinal tracks 4<SP>11</SP> on the inside of the shroud tube 4. The primary nozzle 2 may also be composed of petals and its cone angle may be adjustable by jacks 5 located between the inner and outer pipes 1, 3. The shroud tube 4 has longitudinal tooth racks 4<SP>1</SP> on its outer surface meshing with gear pinions 31 journalled at the downstream edge of outer jet pipe 3. By rotating pinions 3<SP>1</SP> by a common driving means (not shown), the shroud tube can move from its retracted position (for sub-sonic flight) to its extended position (for super-sonic flight), the rollers 7<SP>11</SP> moving first along a track 1<SP>1</SP> on the inner jet pipe 1 and then along track 2<SP>1</SP> on the primary nozzle 2 so that the petals 6, 7 move from their flat position (Fig. 4) to the position (Fig. 5) where they form a convergent-divergent nozzle.
GB16177/57A 1957-05-21 1957-05-21 Improvements in and relating to jet propulsion nozzles Expired GB872195A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB16177/57A GB872195A (en) 1957-05-21 1957-05-21 Improvements in and relating to jet propulsion nozzles
US730562A US2974481A (en) 1957-05-21 1958-04-24 Jet pipe ejector nozzles
DEE15905A DE1115527B (en) 1957-05-21 1958-05-21 Thrust nozzle for jet engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16177/57A GB872195A (en) 1957-05-21 1957-05-21 Improvements in and relating to jet propulsion nozzles

Publications (1)

Publication Number Publication Date
GB872195A true GB872195A (en) 1961-07-05

Family

ID=10072569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16177/57A Expired GB872195A (en) 1957-05-21 1957-05-21 Improvements in and relating to jet propulsion nozzles

Country Status (3)

Country Link
US (1) US2974481A (en)
DE (1) DE1115527B (en)
GB (1) GB872195A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194642B (en) 1958-04-18 1965-06-10 Gen Electric Thrust nozzle for jet engines
US3172253A (en) * 1959-01-02 1965-03-09 Garrett Corp Combination turbo and ramjet propulsion apparatus
NL262125A (en) * 1960-04-01
US3214905A (en) * 1960-11-28 1965-11-02 Gen Electric Variable area convergent-divergent nozzle
DE1226830B (en) 1961-01-07 1966-10-13 Gen Electric Thrust nozzle for a recoil engine with primary and secondary nozzle sections
US3137126A (en) * 1961-01-11 1964-06-16 North American Aviation Inc Method and means for forming a gaseous passage
GB951130A (en) * 1961-07-28 1964-03-04 Rolls Royce Improvements relating to jet engines
US3912934A (en) * 1974-09-25 1975-10-14 Us Air Force Variable free stream buffer
CN107992105B (en) * 2017-12-25 2023-10-17 中国航天空气动力技术研究院 A flow control system and its control method
CN112049993B (en) * 2020-07-24 2025-03-11 中国航天空气动力技术研究院 High-pressure gas flow measurement and control device capable of rapid replacement and replacement method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653445A (en) * 1945-05-11 1953-09-29 Dehavilland Aircraft Turbocompressor jet-propulsion apparatus and adjustable nozzle therefor
FR931437A (en) * 1945-05-11 1948-02-23 Dehavilland Aircraft Improvements to jet thrusters
US2570629A (en) * 1945-10-05 1951-10-09 Anxionnaz Adjustable pipe for the intake of air and expansion of the driving gases in reactionjet propellers for projectiles and vehicles
BE488874A (en) * 1948-05-05
FR1012341A (en) * 1949-07-15 1952-07-08 Hispano Suiza Sa Improvements made to reactive nozzle devices, in particular to post-combustion turbomachines for aerodynes
GB704669A (en) * 1949-07-22 1954-02-24 Rateau Soc Improvements in jet propulsion engines
FR1028513A (en) * 1950-11-28 1953-05-26 Statoturbojet
US2703959A (en) * 1951-07-19 1955-03-15 United Aircraft Corp Variable flow nozzle
US2770944A (en) * 1952-04-26 1956-11-20 United Aircraft Corp Variable area reaction nozzle movable from convergent to convergent-di-vergent form
BE520789A (en) * 1952-06-18 1953-07-15
BE528164A (en) * 1953-04-10
BE537645A (en) * 1954-06-10
GB768014A (en) * 1955-03-07 1957-02-13 United Aircraft Corp Improvements in or relating to variable area propulsion nozzles
GB820059A (en) 1956-07-30 1959-09-16 Bristol Aero Engines Ltd Improvements in or relating to jet propulsion nozzles

Also Published As

Publication number Publication date
DE1115527B (en) 1961-10-19
US2974481A (en) 1961-03-14

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